Have I Lost My Mind?!?!?!

My sister is a runner (5k mainly but she’s done a couple half marathons too). She’s been after me for years to do a 5k with her, saying that “we can just walk it,” thinking that the running was what was preventing me from saying yes. It’s not the running, it’s the 3.1 miles of moving. I just don’t do exercise. But apparently, my fingers have a mind of their own.